196 



Trans. Acad. Sci. of St. Louis. 



Table IV. 



ST. LOUIS PUBLIC SCHOOLS. 



Column "A."- 



114,376 h- 8,741 = 13.1 years. 



Table V. 



ST. LOUIS PUBLIC SCHOOLS. 



Column " B."" 



108,345 -s- 8,117 = 13.3 years. 



